Being an umbrella organization for science and technology, all public and some private R&D and higher learning institutes and institutions are affiliated to COSTECH. This allows COSTECH to maintain a system of collaboration, consultation among the institutes and institutions.
1. AGRICULTURE AND LIVESTOCK INSTITUTIONS
- Animal Disease Research Institute (ADRI)
- Mikocheni Agricultural Research Institute (MARI)
- Sugarcane Research Institute Kibaha (SRI-KIBAHA)
- Agricultural Research Institute KATRIN, IFAKARA. (ARI KATRIN IFAKARA)
- Ilonga Agricultural Research Institute (ARI ILONGA)
- Agricultural Research Institute (ARI) UKIRIGURU
- Tanzania Coffee Research Institute (TACRI)-LYAMUNGU
- Agricultural Research Institute- SELIAN
- Tengeru Agricultural Research Institute (HORTI TENGERU)
- Mlingano Agricultural Research Institute
- Agricultural Research Institute (ARI) UYOLE
- Tanzania Pesticide Research Institute (TPRI).
- National Livestock Research Institute Mpwapwa (NLRI).
- Tea Research Institute Maruku (TRIT)
- Agricultural Research Institute Maruku (ARI-MARUKU)
- Tobacco Research Institute Os Tanzania (TAFORI)
- Tanzania Bureau Of Standards (TBS)
- National Construction Council (NCC).
- National Housing And Building Research Agency (NHBRA)
- Tanzania Automotive Technology Centre (TATC)
- Tanzania Engineering And Manufacturing Design Organization (TEMDO)
- Tanzania Atomic Energy Commission (TAEC).
- Centre For Agricultural Mechanization And Rural Technology (CAMARTEC)
- Tanzania Industrial Research And Development Organization (TIRDO)
3. NATURAL RESOURCES INSTITUTIONS
- Tanzania Fisheries Research Institute (TAFIRI)
- Tanzania Forestry Research Institute (TAFORI)
- Tanzania Wildlife Research Institute (TAWIRI)
- Ngorongoro Conservation Area Authority (NCAA)
4. MEDICINE AND PUBLIC HEALTH INDSTITUTIONS
- National Institute For Medical Research (NIMR HQ)
- Ifakara Health Research and Development Centre.
- Amani Medical Research Centre (Part Of Tanga Medical Research Centre)
- Mwanza Medical Research Centre (Part Of NIMR)
- Tukuyu Medical Research Station (Part OF NIMR)
- Tanzania Food and Nutrition Centre (TFNC)
5. UNIVERSITIES AND COLLEGES
- Sokoine University Of Agriculture (SUA)
- Kilimanjaro Christian Medical College, (KCMC)
- Bugando University College Of Health Sciences
- University Of Dar Es Salaam (UDSM)
- Muhimbili University Of Health And Allied Sciences (MUHAS)
- Aridhi University (ARU)
- The Hubert Kairuki Memorial University